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IR shooter here, I use a D300 IR-converted.
Few things, do not overexpose, underexpose 1-stop to 1/2 stop, you can always get shadow detail back but you can't always recover highlights, especially on older stuff which you will want to IR convert.
Different lenses do different things on IR, my rig came with an 18-200 that has a weird halo in the center if I blow the highlights, I'd like to see what my much-newer Tamron 16-300 does when I get back. Find a lens that does what you want and run with it.
IR light travels at a different speed so that's why many older lenses have an IR marker on them, the effect is more noticeable with telephoto lenses, especially older ones, my 135/2 DC will register out of focus on the image but is in perfect focus in the finder. But my 200-500/5.6 doesn't do this, which is strange. More depth of field is your friend.
Go big or go home, compacts are cool but honestly with as cheap as DSLRs are now, I'm IR-converting a D700 at some point. The conversion is usually 200-300 bucks and well worth it, I'm getting great results from my D300 though so I may just stick with it.
Be mindful of what different types of foliage does to your image. You may see colors but the IR only sees whites. IR conversion is a great way to get good BW conversions later in Lightroom or whatever you use.
